Data from: Evaluating anthropogenic threats to endangered killer whales to inform effective recovery plans
Understanding cumulative effects of multiple threats is key to guiding effective management to conserve endangered species. The critically endangered, Southern Resident killer whale population of the northeastern Pacific Ocean provides a data-rich case to explore anthropogenic threats on population...
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ftdryad:oai:v1.datadryad.org:10255/dryad.160669 2023-05-15T17:03:37+02:00 Data from: Evaluating anthropogenic threats to endangered killer whales to inform effective recovery plans Lacy, Robert C. Williams, Rob Ashe, Erin Balcomb III, Kenneth C. Brent, Lauren J. N. Clark, Christopher W. Croft, Darren P. Giles, Deborah A. MacDuffee, Misty Paquet, Paul C. Canada United States of America northeastern Pacific Ocean Anthropocene 2017-10-26T20:37:32Z http://hdl.handle.net/10255/dryad.160669 https://doi.org/10.5061/dryad.46vq7 unknown doi:10.5061/dryad.46vq7/1 doi:10.1038/s41598-017-14471-0 doi:10.5061/dryad.46vq7 Lacy RC, Williams R, Ashe E, Balcomb III KC, Brent LJN, Clark CW, Croft DP, Giles DA, MacDuffee M, Paquet PC (2017) Evaluating anthropogenic threats to endangered killer whales to inform effective recovery plans. Scientific Reports 7: 14119. http://hdl.handle.net/10255/dryad.160669 Population Viability Analysis Vortex risk assessment endangered species Article 2017 ftdryad https://doi.org/10.5061/dryad.46vq7 https://doi.org/10.5061/dryad.46vq7/1 https://doi.org/10.1038/s41598-017-14471-0 2020-01-01T15:58:45Z Understanding cumulative effects of multiple threats is key to guiding effective management to conserve endangered species. The critically endangered, Southern Resident killer whale population of the northeastern Pacific Ocean provides a data-rich case to explore anthropogenic threats on population viability. Primary threats include: limitation of preferred prey, Chinook salmon; anthropogenic noise and disturbance, which reduce foraging efficiency; and high levels of stored contaminants, including PCBs. We constructed a population viability analysis to explore possible demographic trajectories and the relative importance of anthropogenic stressors. The population is fragile, with no growth projected under current conditions, and decline expected if new or increased threats are imposed. Improvements in fecundity and calf survival are needed to reach a conservation objective of 2.3% annual population growth. Prey limitation is the most important factor affecting population growth. However, to meet recovery targets through prey management alone, Chinook abundance would have to be sustained near the highest levels since the 1970s. The most optimistic mitigation of noise and contaminants would make the difference between a declining and increasing population, but would be insufficient to reach recovery targets. Reducing acoustic disturbance by 50% combined with increasing Chinook by 15% would allow the population to reach 2.3% growth. Article in Journal/Newspaper Killer Whale Killer whale Dryad Digital Repository (Duke University) Canada Pacific |
institution |
Open Polar |
collection |
Dryad Digital Repository (Duke University) |
op_collection_id |
ftdryad |
language |
unknown |
topic |
Population Viability Analysis Vortex risk assessment endangered species |
spellingShingle |
Population Viability Analysis Vortex risk assessment endangered species Lacy, Robert C. Williams, Rob Ashe, Erin Balcomb III, Kenneth C. Brent, Lauren J. N. Clark, Christopher W. Croft, Darren P. Giles, Deborah A. MacDuffee, Misty Paquet, Paul C. Data from: Evaluating anthropogenic threats to endangered killer whales to inform effective recovery plans |
topic_facet |
Population Viability Analysis Vortex risk assessment endangered species |
description |
Understanding cumulative effects of multiple threats is key to guiding effective management to conserve endangered species. The critically endangered, Southern Resident killer whale population of the northeastern Pacific Ocean provides a data-rich case to explore anthropogenic threats on population viability. Primary threats include: limitation of preferred prey, Chinook salmon; anthropogenic noise and disturbance, which reduce foraging efficiency; and high levels of stored contaminants, including PCBs. We constructed a population viability analysis to explore possible demographic trajectories and the relative importance of anthropogenic stressors. The population is fragile, with no growth projected under current conditions, and decline expected if new or increased threats are imposed. Improvements in fecundity and calf survival are needed to reach a conservation objective of 2.3% annual population growth. Prey limitation is the most important factor affecting population growth. However, to meet recovery targets through prey management alone, Chinook abundance would have to be sustained near the highest levels since the 1970s. The most optimistic mitigation of noise and contaminants would make the difference between a declining and increasing population, but would be insufficient to reach recovery targets. Reducing acoustic disturbance by 50% combined with increasing Chinook by 15% would allow the population to reach 2.3% growth. |
format |
Article in Journal/Newspaper |
author |
Lacy, Robert C. Williams, Rob Ashe, Erin Balcomb III, Kenneth C. Brent, Lauren J. N. Clark, Christopher W. Croft, Darren P. Giles, Deborah A. MacDuffee, Misty Paquet, Paul C. |
author_facet |
Lacy, Robert C. Williams, Rob Ashe, Erin Balcomb III, Kenneth C. Brent, Lauren J. N. Clark, Christopher W. Croft, Darren P. Giles, Deborah A. MacDuffee, Misty Paquet, Paul C. |
author_sort |
Lacy, Robert C. |
title |
Data from: Evaluating anthropogenic threats to endangered killer whales to inform effective recovery plans |
title_short |
Data from: Evaluating anthropogenic threats to endangered killer whales to inform effective recovery plans |
title_full |
Data from: Evaluating anthropogenic threats to endangered killer whales to inform effective recovery plans |
title_fullStr |
Data from: Evaluating anthropogenic threats to endangered killer whales to inform effective recovery plans |
title_full_unstemmed |
Data from: Evaluating anthropogenic threats to endangered killer whales to inform effective recovery plans |
title_sort |
data from: evaluating anthropogenic threats to endangered killer whales to inform effective recovery plans |
publishDate |
2017 |
url |
http://hdl.handle.net/10255/dryad.160669 https://doi.org/10.5061/dryad.46vq7 |
op_coverage |
Canada United States of America northeastern Pacific Ocean Anthropocene |
geographic |
Canada Pacific |
geographic_facet |
Canada Pacific |
genre |
Killer Whale Killer whale |
genre_facet |
Killer Whale Killer whale |
op_relation |
doi:10.5061/dryad.46vq7/1 doi:10.1038/s41598-017-14471-0 doi:10.5061/dryad.46vq7 Lacy RC, Williams R, Ashe E, Balcomb III KC, Brent LJN, Clark CW, Croft DP, Giles DA, MacDuffee M, Paquet PC (2017) Evaluating anthropogenic threats to endangered killer whales to inform effective recovery plans. Scientific Reports 7: 14119. http://hdl.handle.net/10255/dryad.160669 |
op_doi |
https://doi.org/10.5061/dryad.46vq7 https://doi.org/10.5061/dryad.46vq7/1 https://doi.org/10.1038/s41598-017-14471-0 |
_version_ |
1766057528316133376 |